Effect of Body Condition Score and Parity on Resumption of Postpartum Ovarian Activity in Montberliard Dairy Cows in Algerian Semi -Arid Area

2013 ◽  
Vol 3 (2) ◽  
pp. 48 ◽  
Author(s):  
kara nabila ◽  
Bounechada Mustapha ◽  
Chaib Chawki
Keyword(s):  
Dairy Cows ◽  
Body Condition ◽  
Body Condition Score ◽  
Arid Area ◽  
Ovarian Activity ◽  
Condition Score ◽  
Semi Arid

scholarly journals Distribution of dominant follicles in postpartum dairy cows

2017 ◽  
Vol 33 (2) ◽  
pp. 181-191
Author(s):  
Benjamin Cengic ◽  
Nazif Varatanovic ◽  
Tarik Mutevelic ◽  
Amel Cutuk ◽  
Ermin Saljic
Keyword(s):  
Dairy Cows ◽  
Corpus Luteum ◽  
Milk Production ◽  
Milk Yield ◽  
Body Condition ◽  
Body Condition Score ◽  
Diagnostic Ultrasound ◽  
Ovarian Activity ◽  
Pathological Effect ◽  
Condition Score

Clinical and subclinical disorders and diseases cause reproductive failures and decline in milk production. Etiology of disorders is mainly because of pathological effect of microorganisms, lapses in nutrition and lodging, as well as in management. After partrition, body is under stress and milk yield is highest, which favors appearance of metabolic and infective diseases. Status of puerperium, number of lactation, body condition score and season of parturition, have highest effect to cyclic ovarian activity. Regular development of dominant follicles, ovulation, formation of corpus luteum and luteolysis is necessary for establishment of regular cyclic ovarian activity, which leads to better fertility. Experiment had included 50 cows during first 52 days of lactation. Cows were separated in two main groups, those with normal puerperium - NP (n=32) and abnormal puerperium - AP (n=18). Examinations have been performed during period of 6 to 52 days postpartum. Ovarian dominant follicles have been observed using diagnostic ultrasound linear scanner. The highest number of dominant follicles are present during first two examinations, then their number declines and later in last two examinations rise again. Decrease in number of dominant follicles in both groups is most expressed in period of 14-30 days. During first examination, left ovaries have more dominant follicles, compared with right ovaries, while during later examinations, it is changed in favor of right ovaries. Increased number of vital dominant follicles from period 38-45 days postpartum and absence of abnormal uterine content in lumen in same period postpartum is sign of upcoming fertile estrus.

scholarly journals Factors affecting postpartum ovarian activity of goats in tropical semi-arid region

2021 ◽  
Vol 53 (1) ◽  
pp. 330-345
Author(s):  
Thiago Nascimento ◽  
Edilson Soares Lopes Junior ◽  
Mayara De Souza Miranda ◽  
Thais Thatiane dos Santos Souza ◽  
Ana Arlete de Amorim Silva ◽  
...  
Keyword(s):  
Heat Stress ◽  
Energy Balance ◽  
Social Interactions ◽  
Body Condition ◽  
Body Condition Score ◽  
Negative Energy ◽  
Negative Energy Balance ◽  
Ovarian Activity ◽  
Condition Score ◽  
Semi Arid

There have been few studies on the use of diets and strategies to reduce the length of postpartum anoestrus in dairy goats, especially in tropical semi-arid regions. This review discusses the factors influencing the return of postpartum ovarian activity in goats. During the postpartum period, goats are in puerperal anoestrus and their reproductive tract is being prepared for a new conception. Anoestrus is necessary for tissue renewal in the uterus (uterine involution) associated with the return of cyclic ovarian activity, and is influenced by factors such as suckling of the offspring, social interactions, body condition score (BCS) before and after birth, intensity of negative energy balance (NEB) and stress from adverse climatic conditions. The anoestrus period can be extended by delays in the resumption of reproductive activity of females in puerperium. The duration of puerperal anoestrus in goats directly affects the productivity of the herd and is mainly influenced by nutrition, lactation period and heat stress. To minimize the negative effects of postpartum anoestrus on productivity, we recommend a mating season and a plan for the kidding period, as well as a program to monitor the body condition score during pregnancy so that the animals will have a better BCS at parturition. To minimize the effects of a negative energy balance, we suggest nutritional supplementation with levels of energy above the requirements for maintenance. Highlights The duration of postpartum anoestrus in goats is influenced by nutrition and body condition score. Heat stress can intensify the negative energy balance, consequently increased the period of anoestrus. Puerperal anoestrus occurs as a result of tissue renewal in the uterus. Suckling of the offspring associated with the period of lactation and social interactions can modified the puerperal anoestrus period. Use of diets and strategies to reduce the postpartum anoestrus in goats.

scholarly journals The Capacity of Holstein-Friesian and Simmental Cows to Correct a Negative Energy Balance in Relation to Their Performance Parameters, Course of Lactation, and Selected Milk Components

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1674
Author(s):  
Ilona Strączek ◽  
Krzysztof Młynek ◽  
Agata Danielewicz
Keyword(s):  
Fatty Acid ◽  
Energy Balance ◽  
Dairy Cows ◽  
Body Condition ◽  
Body Condition Score ◽  
Negative Energy ◽  
Negative Energy Balance ◽  
Holstein Friesian ◽  
Condition Score ◽  
Peak Lactation

A significant factor in improving the performance of dairy cows is their physiological ability to correct a negative energy balance (NEB). This study, using Simmental (SIM) and Holstein-Friesian (HF) cows, aimed to assess changes in NEB (non-esterified fatty acid; body condition score; and C16:0, C18:0, and C18:1) and its effect on the metabolic efficiency of the liver (β-hydroxybutyrate and urea). The effects of NEB on daily yield, production at peak lactation and its duration, and changes in selected milk components were assessed during complete lactation. Up to peak lactation, the loss of the body condition score was similar in both breeds. Subsequently, SIM cows more efficiently restored their BCS. HF cows reached peak lactation faster and with a higher milk yield, but they were less able to correct NEB. During lactation, their non-esterified fatty acid, β-hydroxybutyrate, C16:0, C18:0, C18:1, and urea levels were persistently higher, which may indicate less efficient liver function during NEB. The dynamics of NEB were linked to levels of leptin, which has anorectic effects. Its content was usually higher in HF cows and during intensive lactogenesis. An effective response to NEB may be exploited to improve the production and nutritional properties of milk. In the long term, it may extend dairy cows’ productive life and increase lifetime yield.

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